1665165015276 has 48 divisors (see below), whose sum is σ = 4442740028160. Its totient is φ = 475515005760.

The previous prime is 1665165015257. The next prime is 1665165015281. The reversal of 1665165015276 is 6725105615661.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4970731 + ... + 5295138.

It is an arithmetic number, because the mean of its divisors is an integer number (92557083920).

Almost surely, 2^{1665165015276} is an apocalyptic number.

It is an amenable number.

1665165015276 is an abundant number, since it is smaller than the sum of its proper divisors (2777575012884).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1665165015276 is a wasteful number, since it uses less digits than its factorization.

1665165015276 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10267814 (or 10267812 counting only the distinct ones).

The product of its (nonzero) digits is 2268000, while the sum is 51.

The spelling of 1665165015276 in words is "one trillion, six hundred sixty-five billion, one hundred sixty-five million, fifteen thousand, two hundred seventy-six".